Loading-derrick.



No. 806,852. PATENTED DEC.12,1905.

' 0. s. SWIFT.

LOADING DERRICK.

APPLICATION FILED JULY 3. 1905.

UNITED STATES PATENT OFFICE.

LOADING-DERRICK.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed July 3, 1905- Serial No. 268,051.

To all whom it may concern:

Be it known that I, CHARLES S. SWIFT, a citizen of the United States, and a resident of Clay Station, in the county of Sacramento, State of California, have invented certain new and useful Improvements in Loading- Derricks; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and the characters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in loading-derricks; and my object is to produce a device by means of which hay or other ma- 1 terial may be loaded onto a wagon with a great deal less labor and expense of time than is now experienced, also to do away with the hand-forking of hay, as is now the case when loading wagons. These objects I accomplish by the peculiar construction and adaptation of parts herein fully described, and particularly pointed out in the claims appended.

In this specification I will describe my device as it is used in connection with loading hay; but in practice it may of course be used in many other connections.

Similar characters of reference indicate corresponding parts in all the views of the accompanying drawin s,- in which- Figure 1 is a side e evation of my improved device. Fig. 2 is a sectional view taken on a line :20 c of Fig. 1. taken on a line y y of Fig. 2.

For the construction of my device I first provide two long runners 1 and 2. Connected to the outer side of each runner, at thefront ends thereof, are rings 3 and 4, respectively. On the front half of the said runners I construct a supporting-frame as follows: 5, 6, and 7 are cross-beams secured to the runners 1 and 2 at equal distances apart, the beam 6 being somewhat wider than the other two for the purpose as will be shown. Leading upward from the junctions of the beams and 7 with the runners 1 and 2 are four braces 8, 9, 10,and 1 1, connected at their upper ends to an iron ring 12. In the beam 6 is located an iron ring 13, a trifle off center both ways. In this ring rotates an iron pin 14, secured in V the lower end of the mast or center post 15. The fact that the said ring 13 is off center perinits the said post 15 to be in an inclined position at a certain point, as hereinafter set Fig. 3 is a sectional view forth. Around the said lower end of this mast is an iron ring 16. Between the said lower end of the mast and the beam 6 and surrounding the pin 14 are two convex disks 17 and 18, arranged apex to apex, as shown. Secured to the said master center post is an oblique beam or boom l9,and 20 is a brace connecting the upper end of said boom to said mast. 21 and 22 are pulleys secured on the under side of said boom at the upper and lower ends, respectively. ley connected to the beam 6 alongside of the mast 15. 24 is 'a cable running through the said pulleys, to the lower end of which cable may be attached a swingletree 25 and to the upper end a hay-fork 26.

The operation of my device is as follows: When it is desired to load hay upon a wagon or other place, motive means are connected to the rings 3 and 4 and my device is hauled to a point in the hay-field. Posts or bars are then driven in front of the runners 1 and 2 to prevent forward movement. The wagon to be loaded is then drawn alongside the device on the side toward which the mast leans by reason of its being ofi center. The hay is then bucked up to the derrick and the fork 26 is filled therewith, and then the same is raised by means of a horse hitched to the swingletree 25, and as it rises the mast 15, by reason of being off center and journaled on the convex disks 17 and 18, swings around, carrying the hay over the wagon, on which it is deposited. When the fork 26 is in a position tor'eceivc the load, then the post 15 is about perpendicular; but when the load is on the fork and the same is raised then the weight thereof causes the post 15 to swing into the leaning position over the wagon permitted of by reason of the ring being a trifle off center, as heretofore set forth.

One particular advantage of my device is that the runners 1 and 2, extending outward double the length of the supporting-frame, so balance the device that no guy-ropes are needed to preserve its equilibrium. The disks 17 and 18 and the fact that the center post is slightly off center permit of the said center post swinging easily and quickly when desired.

' I have now entered into a detailed description of the construction and relative arrangement of parts embraced in the present and preferred embodiment of my invention. I do not wish, however, to be understood as confining myself to such specific detail, as

23 is a similar pul- I claim as new and useful, and desire to se' cure by Letters Patent, is

1. In a loading-derrick the combination of a set of runners, a supporting-frame arranged on the front half of said runners, an iron ring arranged in said frame slightly off the center thereof, a center post or mast, a pin secured in the lower end thereof, said pin turning in said iron ring, two convex disks arranged around said pin apex to apex, and lifting means arranged on said center post.

2. In a derrick the combination of a supporting frame, braces extending upward from said frame and secured at their upper ends to an iron ring, a center post pivotally mounted slightly off the center of said frame and extending upward through said ring, an oblique boom secured to said center post, a brace connecting the top of said center post to the top of said boom, a pulley secured to the under side of said boom at each end thereof, a similar pulley secured to said frame at one side of said center post, a tackle-cable extending through said pulleys'and being provided at its upper end with a suitable lifting fork and at its lower end with suitable hitching means, as fully set forth herein.

3. In a derrick the combination of two runners, three cross-beams secured across the front half of said runners at equal distances apart, oblique braces secured to the outer of said cross-beams and connected at their upper ends to an iron ring, a pin pivotally mounted in the middle one of said cross beams slightly off the center thereof, two convex disks surrounding said pin on the upper side of said beam and laid apex to apex, a center post secured on said pin, and extending upward through said ring, and lifting means secured to said center post as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

CHARLES S. S'VVIFT.

WVitnesses:

PERCY S. WEBSTER, J OSI-IUA B. VVEBsTER. 

